The golden triangle inequality

Oxford, Cambridge and London, they say, form the golden triangle.

Now every mathematician knows the triangle inequality: the distance from A to C is no greater than the distance from A to B plus the distance from B to C.

The golden triangle, however, violates this principle. From Oxford to London takes an hour, and from Cambridge to London takes an hour, but from Oxford to Cambridge it’s three hours!

[28 February 2015]

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